1612908697 has 2 divisors, whose sum is σ = 1612908698. Its totient is φ = 1612908696.

The previous prime is 1612908653. The next prime is 1612908709. The reversal of 1612908697 is 7968092161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1569031321 + 43877376 = 39611^2 + 6624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612908697 - 2¹¹ = 1612906649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1612908697.

It is not a weakly prime, because it can be changed into another prime (1612908607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806454348 + 806454349.

It is an arithmetic number, because the mean of its divisors is an integer number (806454349).

Almost surely, 2^1612908697 is an apocalyptic number.

It is an amenable number.

1612908697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612908697 is an equidigital number, since it uses as much as digits as its factorization.

1612908697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1612908697 is about 40161.0345608775. The cubic root of 1612908697 is about 1172.7441121835.

The spelling of 1612908697 in words is "one billion, six hundred twelve million, nine hundred eight thousand, six hundred ninety-seven".